Use this
<link type="text/css" rel="stylesheet" href="style.css"/>
<?PHP
$connect = mysql_connect("localhost","root","");
mysql_select_db("users"); ?>
<table>
<thead>
<th>Username</th>
<th>Password</th>
<th>Email Adress</th>
</thead><?php
$query = mysql_query("SELECT * FROM users");
WHILE($rows = mysql_fetch_array($query)) { ?>
<tr>
<td><?php echo $rows['username']; ?></td>
<td><?php echo $rows['password']; ?></td>
<td><?php echo $rows['email']; ?></td>
</tr>
<?php } ?>
?>